CVE-2026-35031

Katalog CVE

CVSS 8.8 · High EPSS 0,92%

Kerentanan Improper Input Validation pada jellyfin. Skor CVSS 3.1 8.8 (High) menurut NVD.

Deskripsi (NVD)

Jellyfin is an open source self hosted media server. Versions prior to 10.11.7 contain a vulnerability chain in the subtitle upload endpoint (POST /Videos/{itemId}/Subtitles), where the Format field is not validated, allowing path traversal via the file extension and enabling arbitrary file write. This arbitrary file write can be chained into arbitrary file read via .strm files, database extraction, admin privilege escalation, and ultimately remote code execution as root via ld.so.preload. Exploitation requires an administrator account or a user that has been explicitly granted the "Upload Subtitles" permission. This issue has been fixed in version 10.11.7. If users are unable to upgrade immediately, they can grant non-administrator users Subtitle upload permissions to reduce attack surface.

Rincian

Terbit di NVD

14 April 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

8.8 (High), sumber NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-20: Improper Input Validation
CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-187: Partial String Comparison

EPSS (30 hari)

0,92% peluang dieksploitasi; lebih tinggi dari 59,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/jellyfin/jellyfin/security/advisories/GHSA-j2hf-x4q5-47j3 mitigasi · advisory vendor
• https://github.com/jellyfin/jellyfin/releases/tag/v10.11.7 product · release notes